Shoe attachment



F. L. KRYDER.

SHOE ATTACHMENT.

APPLICATION r1110 DEC. 3, 19201 Patented 00. 4, 1921.

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SHOE ATTACHMENT.

Specification of Letters Patent.

Patented Oct. 4, 1921.

Application filed December 3, 1920. Serial No. 427,967.

To whom it may concern:

Be it known that I, FRANK L. KRYDER, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented certain new and useful Improvements in- Shoe Attachments, of which the following is a specification.

This invention relates to shoe attachments, and it comprises an insert having a body portion of cushioning material, said insert being adapted to be arranged in the heel of the shoe with a portion thereof extending forwardly beneath the arch of the foot of the wearer, a cup-shaped member arranged in the heel of the shoe and adapted to receive said cushioning member, the bottom of said cushioning member being shaped to fit said cup-shaped member, a coveringof leather or other suitable material arranged beneath said cup-shaped member, and a covering of fabric for said cushioning member.

Due to the relatively high price of leather, very inferior materials are being em loyed in the construction of shoe hee s. his is true of both the inner sole and the leather used in the heel proper. It is the usual practice to insert a member on the inside of the shoe in contact with the inner sole which will form a protection to prevent nails from coming into contact with the foot of the wearer. These insert members are generally formed of sponge rubber, felt, leather cushions, metal springs, and the like. Such members have proved unsatisfactory, because while they are very comfortable for a short time, they soon lose their effectiveness. Cushioning members made of sponge rubber and similar material form a ball or wad which makes walking very uncomfortablef In the present invention, I employ a rigid cup-shaped member preferably made of metal or similar material to prevent nails or tacks from working through the heel of the shoe and coming in contact with the foot of the wearer. This member is disposed above the usual inner sole, and is provided with flanged ends for the reception of the inner sole, to prevent the edges from CllI'llIlg. A cushioning member is arrangedabove the cup-shaped member, the cushlomng member being leather waste, or rubber, or a composition of these materials, together with any suitable binder, such as glue, com 011, chlond of sulfur, or parafiin 011.

formed of ground cork, ground By the use of the present invention, sufficient cushioning effect is obtained without the disadvantages inherent in cushioning inserts heretofore used. By preventing the nails of the heel from working through the shoe, and by providing a smooth upper surface, the wear on the heel of the stocking is materially reduced and a much more comfortable walking shoe is provided.

In the accompanying drawing I have shown one embodiment of the invention. In this showing:

Figure 1 is a side elevation of a shoe, parts being broken away to show the insert,

Fig. 2 is a horizontal sectional View of, a portion of a shoe taken on the line above the insert, and, I

Fig. 3 is a transverse sectional view of a shoe heel showing the insert in position.

Referring to the drawings, the reference numeral 1 designates a shoe of the usual construction, provided with a heel 2. The upper face of the heel is provided with a depression ,3, and the usual inner sole 4 is arranged in this depression. A cup-shaped member 5, arranged to fit within the depression in the shoe heel, is disposed above the inner sole. This member may be formed of any suitable material, such as aluminum, copper, or other metal, or it may be formed of hard rubber or any other suitable material which will prevent the passage of nails through the cushioning member. As shown, the edges of the cup-shaped member are flanged, as at 6, and are adapted to receive the inner sole to prevent the edges of the inner sole from curling up.

A cushioning member 7 is arranged above the cup-shaped member, the bottom of the cushioning member being shaped to fit in the cup-shaped member, and the upper surface being substantially fiat, as at 8. Any suitable material may be employed in the cushioning member. It is necessary that the material be suflicient-ly resilient to perform the desired functions, and I have found that ground cork, ground leather waste, or rubber, or a mixture of these materials in the proper proportions, provided with a suitable binder, such as a mixture of corn oil, glue, chlorid of sulfur, and paraffin oil, may be advantageously employed. The materials properly mixed are placed in the cup and subjected to heat and pressure whereby they are vulcanized and adhere firmlyto the inner surface of the cup. As

whereby it is firmly held in position and the formation of lumps or wads under the foot of the wearer is prevented.

A lining of the cushioning material ispreferably extended forwardly of the heel under the arch of the shoe, as at 10. A layer of fabric 11 may be arranged between the lining 10 and the sole of the shoe. This fabric is best applied by coating it on one side with a material that will vulcanize to the mixture and to the metal cup. The entire upper surface of the cushioning material is provided with a covering of fabric 12, which may be applied in the same manner.

It is to be understood that the form of my invention herewith shown and described isto be taken as a preferred example of the same, andthat various changes in the shape,

size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scopeof the sub joined claims. Having thus described my invention, I claim: v

1. An insert for shoes, comprising a lining of cushioning material adapted to be arranged within a shoe, a cup-shaped member arranged at the rear of said lining, said lining being shaped to fit said cup-shaped member, said cup-shaped member being provided with a plurality of openings through which said cushioning material extends, the edges of the cup-shaped member being provided with flanges, and a layer of fabric arranged beneath said cup-shaped member, the edges thereof being secured within said flanges.

2. The combination with a shoe having an upper cavity in the heel, of an insert, comprising a lining of cushioning material extending from the arch to the heel of the shoe, a cup-shaped member arranged in said upper cavity, said lining being adapted to fit within said cup-shaped member, said cup-shaped member being provided with a plurality of openings adapted to receive said cushioning material, the edges of said cup-shaped member being provided with flanges, an inner sole arranged beneath said cup-shaped member, the edges thereof being arranged within said flanges, and a covering arranged on the upper surface of said cushioning material.

In testimony whereof I afiix my signature in presence of two witnesses.

FRANK L. KRYDER.

Witnesses:

C. J. CARo'rnnRs, J. P. FRIBBB. 

